*{
  margin: 0;
  padding: 0;
  /* font-size: ; */
}
[data-theme='light']{
  background-color: #000;
  color:'#fff'
}
[data-theme='dark']{
  background-color: #fff;
  color:'#000',
  
}
.dda{
  width: 100px;
  height: 100px;
  font-size: 50px;
  line-height: 40px;
}
